/* roulang page: index */
:root {
            --color-brand-50: #f5f2ef;
            --color-brand-100: #e8e0d8;
            --color-brand-200: #d4c7b8;
            --color-brand-300: #bca893;
            --color-brand-400: #a88d75;
            --color-brand-500: #8c6f58;
            --color-brand-600: #6b5240;
            --color-brand-700: #4a372b;
            --color-brand-800: #33261d;
            --color-brand-900: #1f1712;
            --color-brand-950: #120d0a;
            --color-accent: #c9a96e;
            --color-accent-dark: #a8874a;
            --color-surface: #faf8f6;
            --color-muted: #7a6e64;
            --color-muted-light: #a89a8f;
            --color-border: #e5ded6;
            --color-border-dark: #c4b8ab;
            --shadow-soft: 0 2px 16px rgba(31, 23, 18, 0.06);
            --shadow-medium: 0 6px 28px rgba(31, 23, 18, 0.10);
            --shadow-elevated: 0 16px 48px rgba(31, 23, 18, 0.14);
            --shadow-card-hover: 0 12px 40px rgba(31, 23, 18, 0.16);
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.75rem;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
            line-height: 1.7;
            background-color: var(--color-surface);
            color: var(--color-brand-800);
            overflow-x: hidden;
            padding-bottom: 80px;
            transition: padding-bottom var(--transition-smooth);
        }

        @media (min-width: 1024px) {
            body {
                padding-bottom: 0;
            }
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 6px;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        .section-padding {
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding-top: 4.5rem;
                padding-bottom: 4.5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 248, 246, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-soft);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
            border-bottom-color: var(--color-border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .header-inner {
                height: 64px;
            }
        }
        @media (min-width: 1024px) {
            .header-inner {
                height: 72px;
            }
        }

        .logo-text {
            font-family: 'Noto Serif SC', 'Source Han Serif SC', Georgia, serif;
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: 0.03em;
            color: var(--color-brand-900);
            white-space: nowrap;
            transition: color var(--transition-base);
        }
        .logo-text:hover {
            color: var(--color-accent);
        }
        @media (min-width: 768px) {
            .logo-text {
                font-size: 1.45rem;
            }
        }

        .desktop-nav {
            display: none;
            align-items: center;
            gap: 0.15rem;
            list-style: none;
        }
        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
            }
        }

        .desktop-nav a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-brand-700);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .desktop-nav a:hover {
            background: var(--color-brand-50);
            color: var(--color-brand-900);
        }
        .desktop-nav a.active {
            background: var(--color-brand-800);
            color: #fff;
            font-weight: 600;
        }

        .header-cta {
            display: none;
            background: var(--color-accent);
            color: #fff;
            padding: 0.55rem 1.4rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.88rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(201, 169, 110, 0.25);
        }
        .header-cta:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 4px 18px rgba(201, 169, 110, 0.4);
            color: #fff;
            transform: translateY(-1px);
        }
        @media (min-width: 768px) {
            .header-cta {
                display: inline-flex;
            }
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: transparent;
            color: var(--color-brand-700);
            font-size: 1.3rem;
            transition: all var(--transition-base);
        }
        .mobile-menu-toggle:hover {
            background: var(--color-brand-50);
            color: var(--color-brand-900);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            max-width: 85vw;
            height: 100vh;
            background: #fff;
            z-index: 200;
            box-shadow: var(--shadow-elevated);
            transition: right var(--transition-smooth);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .mobile-drawer-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(18, 13, 10, 0.5);
            z-index: 199;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .mobile-drawer-backdrop.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-drawer a {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-xl);
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-brand-700);
            transition: all var(--transition-base);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: var(--color-brand-50);
            color: var(--color-brand-900);
        }
        .mobile-drawer .drawer-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-brand-50);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-brand-600);
            transition: all var(--transition-base);
        }
        .mobile-drawer .drawer-close:hover {
            background: var(--color-brand-100);
            color: var(--color-brand-900);
        }

        /* Bottom Tab Nav - Mobile */
        .bottom-tab-nav {
            display: flex;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 110;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border);
            box-shadow: var(--shadow-bottom-nav);
            padding: 0.4rem 0.5rem env(safe-area-inset-bottom, 0.5rem);
            gap: 0;
            justify-content: space-around;
        }
        @media (min-width: 1024px) {
            .bottom-tab-nav {
                display: none;
            }
        }
        .bottom-tab-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--color-muted);
            padding: 0.3rem 0.4rem;
            border-radius: 10px;
            transition: all var(--transition-base);
            min-width: 48px;
            text-align: center;
            letter-spacing: 0.01em;
        }
        .bottom-tab-nav a i {
            font-size: 1.15rem;
            transition: all var(--transition-base);
        }
        .bottom-tab-nav a.active {
            color: var(--color-brand-800);
            font-weight: 700;
        }
        .bottom-tab-nav a.active i {
            color: var(--color-accent);
        }
        .bottom-tab-nav a:hover {
            color: var(--color-brand-700);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--color-brand-900);
            color: #fff;
        }
        @media (min-width: 768px) {
            .hero-section {
                min-height: 78vh;
            }
        }
        @media (min-width: 1024px) {
            .hero-section {
                min-height: 85vh;
            }
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.55;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31, 23, 18, 0.35) 0%, rgba(31, 23, 18, 0.7) 60%, rgba(18, 13, 10, 0.9) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 2rem 0;
        }
        @media (min-width: 768px) {
            .hero-content {
                padding: 3rem 0;
            }
        }
        .hero-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 0.75rem;
            border-bottom: 2px solid var(--color-accent);
            padding-bottom: 0.4rem;
        }
        .hero-title {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: 0.02em;
            margin-bottom: 1rem;
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
                line-height: 1.15;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.75rem;
            }
        }
        .hero-desc {
            font-size: 1rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 1.75rem;
            max-width: 500px;
        }
        @media (min-width: 768px) {
            .hero-desc {
                font-size: 1.1rem;
            }
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-accent-dark);
            box-shadow: 0 8px 26px rgba(201, 169, 110, 0.45);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--color-brand-700);
            color: #fff;
        }
        .btn-secondary:hover {
            background: var(--color-brand-800);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-medium);
        }

        /* Section Titles */
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            letter-spacing: 0.13em;
            text-transform: uppercase;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 0.5rem;
            border-bottom: 2px solid var(--color-accent);
            padding-bottom: 0.3rem;
        }
        .section-title {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-brand-900);
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.25;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-muted);
            max-width: 560px;
            line-height: 1.7;
        }

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-soft);
            transition: all var(--transition-smooth);
            overflow: hidden;
            border: 1px solid transparent;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border);
            transform: translateY(-3px);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--color-brand-50);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 1.25rem 1.25rem 1.5rem;
        }
        @media (min-width: 768px) {
            .card-body {
                padding: 1.5rem;
            }
        }
        .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .card-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-brand-900);
            margin-bottom: 0.4rem;
            line-height: 1.35;
            letter-spacing: 0.01em;
        }
        .card-desc {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        /* Stat cards */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-soft);
            text-align: center;
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-medium);
            border-color: var(--color-border);
        }
        .stat-number {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
            line-height: 1;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 0.4rem;
            letter-spacing: 0.02em;
        }

        /* Info cards row */
        .info-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow-soft);
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }
        .info-card:hover {
            box-shadow: var(--shadow-medium);
            border-color: var(--color-border);
            transform: translateY(-2px);
        }
        .info-card-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-brand-50);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-accent);
            transition: all var(--transition-base);
        }
        .info-card:hover .info-card-icon {
            background: var(--color-accent);
            color: #fff;
        }
        .info-card-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-brand-900);
            margin-bottom: 0.25rem;
        }
        .info-card-desc {
            font-size: 0.82rem;
            color: var(--color-muted);
            line-height: 1.55;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 1.1rem 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-brand-800);
            gap: 1rem;
            letter-spacing: 0.01em;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-brand-50);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-smooth);
            color: var(--color-brand-600);
        }
        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.65;
            padding-right: 2.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding-top: 0.6rem;
            padding-bottom: 0.3rem;
        }

        /* CTA */
        .cta-block {
            background: var(--color-brand-800);
            color: #fff;
            border-radius: var(--radius-3xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-elevated);
            position: relative;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .cta-block {
                padding: 3.5rem 2.5rem;
            }
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(201, 169, 110, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-title {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.5rem;
            font-weight: 700;
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }
        @media (min-width: 768px) {
            .cta-title {
                font-size: 1.9rem;
            }
        }
        .cta-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            margin: 0.75rem 0 1.5rem;
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--color-brand-900);
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 2rem;
            font-size: 0.85rem;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2.5rem;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }
        .footer-logo {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .footer-desc {
            margin-top: 0.5rem;
            font-size: 0.8rem;
            line-height: 1.6;
            max-width: 260px;
        }
        .footer-col-title {
            font-weight: 600;
            color: #fff;
            font-size: 0.82rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .footer-col a {
            display: block;
            padding: 0.25rem 0;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-base);
            font-size: 0.82rem;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* Timeline / Flow */
        .timeline-item {
            display: flex;
            gap: 1rem;
            padding: 1rem 0;
            border-left: 2px solid var(--color-border);
            padding-left: 1.25rem;
            position: relative;
            transition: all var(--transition-base);
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -6px;
            top: 1.3rem;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
        }
        .timeline-item:hover {
            border-left-color: var(--color-accent);
        }
        .timeline-year {
            font-weight: 700;
            color: var(--color-accent);
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            white-space: nowrap;
            min-width: 50px;
        }
        .timeline-content h4 {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-brand-900);
            margin-bottom: 0.2rem;
        }
        .timeline-content p {
            font-size: 0.8rem;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* Grid utilities */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 640px) {
            .grid-2 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 640px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .grid-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* Badge / Tag */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.7rem;
            border-radius: 9999px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            background: var(--color-brand-50);
            color: var(--color-brand-600);
        }
        .badge-accent {
            background: rgba(201, 169, 110, 0.15);
            color: var(--color-accent-dark);
        }

        /* Search */
        .search-box {
            display: flex;
            gap: 0.5rem;
            max-width: 480px;
            margin: 0 auto;
        }
        .search-box input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border-radius: 9999px;
            border: 1.5px solid var(--color-border);
            background: #fff;
            font-size: 0.9rem;
            color: var(--color-brand-800);
            transition: all var(--transition-base);
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(201, 169, 110, 0.1);
        }
        .search-box button {
            padding: 0.7rem 1.5rem;
            border-radius: 9999px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
        }
        .search-box button:hover {
            background: var(--color-accent-dark);
        }

        /* Marquee / scrolling strip */
        .marquee-strip {
            overflow: hidden;
            white-space: nowrap;
            background: var(--color-brand-50);
            padding: 0.7rem 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .marquee-inner {
            display: inline-flex;
            gap: 2.5rem;
            animation: marquee 28s linear infinite;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--color-brand-600);
            letter-spacing: 0.05em;
        }
        @keyframes marquee {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        /* Responsive adjustments */
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.82rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a1a1f;
            --color-accent: #c8a063;
            --color-accent-dark: #a8844a;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #1a1a1f;
            --color-text-soft: #5a5a62;
            --color-text-weak: #8a8a90;
            --color-border: #e5e4e0;
            --color-border-light: #f0efe9;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.09);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 1.5rem;
            --space-lg: 2.5rem;
            --space-xl: 4rem;
            --space-2xl: 6rem;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Helvetica Neue', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            letter-spacing: 0.01em;
            padding-bottom: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            color: inherit;
        }
        input {
            font-family: inherit;
        }
        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .header-inner {
                height: 70px;
                gap: 1.5rem;
            }
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .logo-text:hover {
            color: var(--color-accent);
        }
        .desktop-nav {
            display: none;
            list-style: none;
            gap: 0.25rem;
            align-items: center;
            flex-wrap: nowrap;
        }
        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
            }
        }
        .desktop-nav a {
            display: inline-block;
            padding: 0.45rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--color-text-soft);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .desktop-nav a:hover {
            color: var(--color-accent);
            background: rgba(200, 160, 99, 0.06);
        }
        .desktop-nav a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(200, 160, 99, 0.1);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .header-cta {
            display: none;
            padding: 0.55rem 1.3rem;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            color: #fff;
            background: var(--color-accent);
            border-radius: var(--radius-md);
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(200, 160, 99, 0.25);
        }
        .header-cta:hover {
            background: var(--color-accent-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 160, 99, 0.35);
            transform: translateY(-1px);
        }
        @media (min-width: 768px) {
            .header-cta {
                display: inline-block;
            }
        }
        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            color: var(--color-text);
            font-size: 1.25rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            border: 1px solid var(--color-border);
            background: var(--color-surface);
        }
        .mobile-menu-toggle:hover {
            background: var(--color-border-light);
            color: var(--color-accent);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        /* Mobile drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 85%;
            max-width: 380px;
            height: 100vh;
            background: var(--color-surface);
            z-index: 200;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 199;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }
        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-close {
            align-self: flex-end;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-border-light);
            font-size: 1.1rem;
            transition: all var(--transition-fast);
        }
        .drawer-close:hover {
            background: #e8e8e2;
            color: var(--color-accent);
        }
        .drawer-nav {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }
        .drawer-nav a {
            display: block;
            padding: 0.7rem 1rem;
            font-size: 1rem;
            font-weight: 500;
            border-radius: var(--radius-md);
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
        }
        .drawer-nav a:hover,
        .drawer-nav a.active {
            color: var(--color-accent);
            background: rgba(200, 160, 99, 0.08);
            font-weight: 600;
        }

        /* ========== BOTTOM TAB (mobile) ========== */
        .bottom-tab-bar {
            display: flex;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 98;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--color-border-light);
            justify-content: space-around;
            align-items: center;
            height: 60px;
            padding-bottom: env(safe-area-inset-bottom, 0);
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.05);
        }
        @media (min-width: 1024px) {
            .bottom-tab-bar {
                display: none;
            }
        }
        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            min-width: 48px;
            text-align: center;
        }
        .bottom-tab-item i {
            font-size: 1.15rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-item.active {
            color: var(--color-accent);
            font-weight: 600;
        }
        .bottom-tab-item.active i {
            color: var(--color-accent);
        }
        .bottom-tab-item:hover {
            color: var(--color-accent);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .page-banner {
                min-height: 420px;
            }
        }
        @media (min-width: 1024px) {
            .page-banner {
                min-height: 480px;
            }
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 31, 0.55) 0%, rgba(26, 26, 31, 0.72) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 3rem 0;
            max-width: 680px;
        }
        .page-banner-content .banner-tag {
            display: inline-block;
            padding: 0.35rem 1rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 50px;
            margin-bottom: 1rem;
            backdrop-filter: blur(6px);
        }
        .page-banner-content h1 {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }
        @media (min-width: 768px) {
            .page-banner-content h1 {
                font-size: 2.8rem;
            }
        }
        @media (min-width: 1024px) {
            .page-banner-content h1 {
                font-size: 3.2rem;
            }
        }
        .page-banner-content p {
            font-size: 1rem;
            line-height: 1.7;
            opacity: 0.9;
            max-width: 520px;
            color: rgba(255, 255, 255, 0.88);
        }
        @media (min-width: 768px) {
            .page-banner-content p {
                font-size: 1.1rem;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--space-xl) 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: var(--space-2xl) 0;
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--space-lg);
        }
        @media (min-width: 768px) {
            .section-header {
                margin-bottom: var(--space-xl);
            }
        }
        .section-header h2 {
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            margin-bottom: 0.5rem;
        }
        @media (min-width: 768px) {
            .section-header h2 {
                font-size: 2.1rem;
            }
        }
        .section-header .subtitle {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
            margin: 1rem auto 0;
        }

        /* ========== BRAND CARDS ========== */
        .brand-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        @media (min-width: 520px) {
            .brand-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .brand-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 2rem;
            }
        }
        .brand-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .brand-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .brand-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
            background: #f5f4f0;
        }
        .brand-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .brand-card:hover .brand-card-img img {
            transform: scale(1.04);
        }
        .brand-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 0.25rem 0.7rem;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            background: rgba(255, 255, 255, 0.9);
            color: var(--color-accent);
            border-radius: 50px;
            backdrop-filter: blur(4px);
            z-index: 2;
        }
        .brand-card-body {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .brand-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-primary);
        }
        .brand-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.55;
            flex: 1;
        }
        .brand-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            margin-top: 0.25rem;
            transition: gap var(--transition-fast);
        }
        .brand-card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .brand-card-link:hover {
            gap: 0.55rem;
            color: var(--color-accent-dark);
        }
        .brand-card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 2rem;
            }
        }
        .stat-block {
            text-align: center;
            padding: 1.5rem 1rem;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-accent);
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.4rem;
            }
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-top: 0.3rem;
            letter-spacing: 0.03em;
        }

        /* ========== INFO LIST ========== */
        .info-list-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .info-list-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }
        .info-list-item {
            display: flex;
            gap: 1rem;
            padding: 1.25rem;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .info-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .info-list-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(200, 160, 99, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-accent);
            font-size: 1.15rem;
        }
        .info-list-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 0.2rem;
            letter-spacing: 0.02em;
        }
        .info-list-content p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.1rem 1.3rem;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question i {
            font-size: 0.8rem;
            transition: transform var(--transition-base);
            color: var(--color-text-weak);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 1.3rem 1.1rem;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.65;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: var(--space-xl) 0;
            border-radius: var(--radius-xl);
            margin: var(--space-lg) 0;
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: var(--space-2xl) 0;
                margin: var(--space-xl) 0;
            }
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 0.5rem;
        }
        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 2rem;
            }
        }
        .cta-section p {
            font-size: 0.95rem;
            opacity: 0.8;
            max-width: 480px;
            margin: 0 auto 1.5rem;
            line-height: 1.6;
        }
        .cta-btn {
            display: inline-block;
            padding: 0.75rem 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50px;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(200, 160, 99, 0.35);
        }
        .cta-btn:hover {
            background: #d4ad6e;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 160, 99, 0.45);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1a1f;
            color: #c5c5cc;
            padding: 2.5rem 0 1.5rem;
            font-size: 0.88rem;
            margin-top: 0;
        }
        @media (max-width: 1023px) {
            .site-footer {
                padding-bottom: 80px;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.6fr 1fr 1fr 1fr;
                gap: 2rem;
            }
        }
        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 0.5rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.6;
            color: #9999a0;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #9999a0;
            padding: 0.25rem 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid #2a2a32;
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem 2rem;
            font-size: 0.8rem;
            color: #777780;
            letter-spacing: 0.02em;
        }

        /* Utility */
        .bg-soft {
            background: #f5f3ee;
        }
        .text-accent {
            color: var(--color-accent);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a1a1f;
            --color-accent: #c8a06e;
            --color-accent-deep: #a0783c;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #2c2c30;
            --color-text-soft: #6b6b72;
            --color-text-muted: #9a9aa0;
            --color-border: #e8e8ec;
            --color-border-light: #f0f0f3;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.09);
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 8px 28px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-serif: 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', 'KaiTi', serif;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --header-height: 64px;
            --bottom-tab-height: 56px;
            --max-width: 1200px;
            --space-section: 60px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            padding-bottom: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== HEADER ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.45rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .logo-text:hover {
            color: var(--color-accent-deep);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .desktop-nav li a {
            display: inline-block;
            padding: 7px 13px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .desktop-nav li a:hover {
            color: var(--color-text);
            background: rgba(0, 0, 0, 0.03);
        }
        .desktop-nav li a.active {
            color: var(--color-accent-deep);
            background: rgba(200, 160, 110, 0.08);
            font-weight: 600;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-primary);
            border-radius: 50px;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
        }
        .header-cta:hover {
            background: var(--color-accent-deep);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(160, 120, 60, 0.3);
        }
        .header-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .mobile-menu-toggle {
            display: none;
            font-size: 1.3rem;
            color: var(--color-text);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* Mobile Nav Panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            flex-direction: column;
            padding: 20px;
            gap: 4px;
            overflow-y: auto;
            border-top: 1px solid var(--color-border-light);
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: rgba(200, 160, 110, 0.07);
            color: var(--color-accent-deep);
            font-weight: 600;
        }

        /* ===== BOTTOM TAB (Mobile) ===== */
        .bottom-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border-light);
            height: var(--bottom-tab-height);
            padding: 0 8px;
            justify-content: space-around;
            align-items: center;
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.04);
        }
        .bottom-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--color-text-muted);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            min-width: 52px;
            text-align: center;
            letter-spacing: 0.02em;
        }
        .bottom-tab-bar .tab-item i {
            font-size: 1.15rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-bar .tab-item.active {
            color: var(--color-accent-deep);
            font-weight: 600;
        }
        .bottom-tab-bar .tab-item.active i {
            color: var(--color-accent-deep);
        }
        .bottom-tab-bar .tab-item:hover {
            color: var(--color-text);
        }

        /* ===== SECTION TITLES ===== */
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-accent-deep);
            margin-bottom: 8px;
        }
        .section-heading {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .section-subheading {
            font-size: 1rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            max-width: 620px;
        }

        /* ===== HERO BANNER ===== */
        .category-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            background: var(--color-primary);
            overflow: hidden;
        }
        .category-hero .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
            pointer-events: none;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 31, 0.55) 0%, rgba(26, 26, 31, 0.78) 100%);
            pointer-events: none;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 50px 0;
        }
        .category-hero .hero-content h1 {
            font-family: var(--font-serif);
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .category-hero .hero-content p {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 550px;
            line-height: 1.6;
        }
        .category-hero .breadcrumb {
            display: flex;
            gap: 6px;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
        }
        .category-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }
        .category-hero .breadcrumb a:hover {
            color: #fff;
        }
        .category-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== CARDS ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 22px;
        }
        .info-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .info-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #f5f5f6;
        }
        .info-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .info-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .info-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--color-accent-deep);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 5px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            z-index: 1;
        }
        .info-card .card-body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .info-card .card-body h3 {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }
        .info-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.55;
            flex: 1;
        }
        .info-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent-deep);
            transition: gap var(--transition-fast);
            margin-top: 4px;
        }
        .info-card .card-body .card-link:hover {
            gap: 10px;
        }
        .info-card .card-body .card-link i {
            font-size: 0.7rem;
        }

        /* ===== TIMELINE ===== */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 28px;
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }
        .timeline-item {
            position: relative;
            padding: 16px 0 20px 20px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 20px;
            width: 10px;
            height: 10px;
            background: var(--color-accent);
            border-radius: 50%;
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px var(--color-accent);
            z-index: 1;
        }
        .timeline-item .tl-year {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--color-accent-deep);
            letter-spacing: 0.06em;
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        /* ===== FEATURE BLOCK ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-block .fb-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: #f0f0f3;
        }
        .feature-block .fb-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-block .fb-text h3 {
            font-family: var(--font-serif);
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .feature-block .fb-text p {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        /* ===== STATS ROW ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .stat-card .stat-num {
            font-family: var(--font-serif);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-accent-deep);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-soft);
            letter-spacing: 0.02em;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 780px;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent);
        }
        .faq-item .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 18px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            letter-spacing: 0.01em;
            gap: 12px;
            transition: background var(--transition-fast);
        }
        .faq-item .faq-q:hover {
            background: rgba(0, 0, 0, 0.015);
        }
        .faq-item .faq-q i {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--color-accent-deep);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 18px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .faq-item.open .faq-a {
            max-height: 260px;
            padding: 0 18px 16px;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 30%, rgba(200, 160, 110, 0.2) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 500px;
            margin: 0 auto 22px;
            position: relative;
            z-index: 1;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-accent-deep);
            border-radius: 50px;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            position: relative;
            z-index: 1;
        }
        .btn-accent:hover {
            background: #b8863a;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(160, 120, 60, 0.4);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: none;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #1a1a1f;
            color: #c5c5cc;
            padding: 44px 0 28px;
            font-size: 0.88rem;
            line-height: 1.8;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 28px;
        }
        .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-desc {
            color: #9a9aa3;
            font-size: 0.82rem;
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col-title {
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .footer-col a {
            display: block;
            color: #9a9aa3;
            font-size: 0.84rem;
            padding: 3px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.78rem;
            color: #7a7a82;
        }
        .section-spacer {
            padding: 50px 0;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .desktop-nav {
                gap: 2px;
            }
            .desktop-nav li a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            .header-cta {
                padding: 8px 15px;
                font-size: 0.78rem;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
                gap: 16px;
            }
            .section-heading {
                font-size: 1.7rem;
            }
            .category-hero {
                min-height: 300px;
            }
            .category-hero .hero-content h1 {
                font-size: 2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 22px;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .bottom-tab-bar {
                display: flex;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .site-footer {
                padding-bottom: 80px;
            }
            .category-hero {
                min-height: 260px;
            }
            .category-hero .hero-content h1 {
                font-size: 1.65rem;
            }
            .category-hero .hero-content p {
                font-size: 0.9rem;
            }
            .section-heading {
                font-size: 1.45rem;
            }
            .card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .info-card .card-body h3 {
                font-size: 1rem;
            }
            .info-card .card-body {
                padding: 14px 12px 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-card .stat-num {
                font-size: 1.6rem;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .feature-block .fb-text h3 {
                font-size: 1.25rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h3 {
                font-size: 1.4rem;
            }
            .timeline-list {
                padding-left: 20px;
            }
            .timeline-list::before {
                left: 5px;
            }
            .timeline-item::before {
                left: -17px;
                width: 8px;
                height: 8px;
                top: 18px;
                box-shadow: 0 0 0 2px var(--color-accent);
            }
            .timeline-item {
                padding: 12px 0 16px 16px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-spacer {
                padding: 32px 0;
            }
        }

        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .category-hero {
                min-height: 220px;
            }
            .category-hero .hero-content h1 {
                font-size: 1.4rem;
            }
            .category-hero .breadcrumb {
                font-size: 0.72rem;
            }
            .section-heading {
                font-size: 1.3rem;
            }
            .cta-section h3 {
                font-size: 1.2rem;
            }
            .btn-accent {
                padding: 11px 22px;
                font-size: 0.82rem;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .info-card .card-body h3 {
                font-size: 0.95rem;
            }
            .timeline-item h4 {
                font-size: 0.92rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-accent: #c8a45c;
            --color-accent-deep: #a07838;
            --color-dark: #1a1815;
            --color-surface: #faf8f4;
            --color-surface-alt: #f3efe7;
            --color-muted: #8c8880;
            --color-muted-light: #b5b0a7;
            --color-border: #e5e0d8;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-card: 0 1px 3px rgba(26, 24, 21, 0.06), 0 8px 24px rgba(26, 24, 21, 0.05);
            --shadow-card-hover: 0 2px 6px rgba(26, 24, 21, 0.08), 0 16px 40px rgba(26, 24, 21, 0.09);
            --shadow-nav: 0 1px 0 rgba(26, 24, 21, 0.06), 0 4px 16px rgba(26, 24, 21, 0.04);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: #2d2a25;
            background-color: #fcfaf7;
            min-height: 100vh;
            padding-bottom: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-smooth);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(252, 250, 247, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }

        .logo-text {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-dark);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-smooth);
        }
        .logo-text:hover {
            color: var(--color-accent-deep);
        }

        .desktop-nav {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }
        .desktop-nav li a {
            display: inline-block;
            padding: 0.5rem 0.85rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #4a4640;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .desktop-nav li a:hover {
            color: var(--color-dark);
            background: var(--color-surface-alt);
        }
        .desktop-nav li a.active {
            color: var(--color-accent-deep);
            font-weight: 600;
            background: rgba(200, 164, 92, 0.1);
        }
        .desktop-nav li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2.5px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-dark);
            border-radius: 2rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 8px rgba(26, 24, 21, 0.18);
        }
        .header-cta:hover {
            background: #2d2a25;
            box-shadow: 0 4px 16px rgba(26, 24, 21, 0.3);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: var(--color-dark);
            border-radius: var(--radius-sm);
            transition: all var(--transition-smooth);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: var(--color-surface-alt);
        }

        /* Mobile Menu Panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fcfaf7;
            z-index: 99;
            flex-direction: column;
            padding: 1.5rem;
            gap: 0.5rem;
            overflow-y: auto;
            border-top: 1px solid var(--color-border);
        }
        .mobile-nav-panel.is-open {
            display: flex;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 0.85rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: #4a4640;
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
        }
        .mobile-nav-panel a:hover {
            background: var(--color-surface-alt);
            color: var(--color-dark);
        }
        .mobile-nav-panel a.active {
            color: var(--color-accent-deep);
            font-weight: 600;
            background: rgba(200, 164, 92, 0.1);
        }

        /* Bottom Tab Bar - Mobile */
        .bottom-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(252, 250, 247, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
            padding: 0.35rem 0.5rem;
            padding-bottom: calc(0.35rem + env(safe-area-inset-bottom, 0px));
            display: none;
            justify-content: space-around;
            align-items: center;
            gap: 0.25rem;
        }
        .bottom-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
            padding: 0.3rem 0.4rem;
            font-size: 0.7rem;
            font-weight: 500;
            color: #8c8880;
            border-radius: 0.5rem;
            transition: all var(--transition-smooth);
            min-width: 52px;
            text-align: center;
            white-space: nowrap;
        }
        .bottom-tab-bar .tab-item i {
            font-size: 1.2rem;
            transition: all var(--transition-smooth);
        }
        .bottom-tab-bar .tab-item.active {
            color: var(--color-accent-deep);
            font-weight: 600;
        }
        .bottom-tab-bar .tab-item.active i {
            color: var(--color-accent);
        }
        .bottom-tab-bar .tab-item:hover {
            color: var(--color-dark);
        }
        .bottom-tab-bar .tab-item:active {
            transform: scale(0.94);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 24, 21, 0.55) 0%, rgba(26, 24, 21, 0.7) 100%);
            z-index: 1;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 3rem 0;
            width: 100%;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.25rem;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-smooth);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: #fff;
            font-weight: 500;
        }

        /* Section */
        .section {
            padding: 3.5rem 0;
        }
        .section-alt {
            background: var(--color-surface);
        }
        .section-title {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 0.6rem;
            letter-spacing: 0.03em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-muted);
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-header .accent-line {
            display: inline-block;
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin-top: 0.5rem;
        }

        /* Cards */
        .craft-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-bounce);
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .craft-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #d5cfc4;
        }
        .craft-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f3efe7;
        }
        .craft-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .craft-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .craft-card .card-body {
            padding: 1.35rem 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .craft-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-accent-deep);
            background: rgba(200, 164, 92, 0.12);
            padding: 0.25rem 0.7rem;
            border-radius: 2rem;
            letter-spacing: 0.04em;
            align-self: flex-start;
        }
        .craft-card .card-title {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-dark);
            line-height: 1.4;
        }
        .craft-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
            flex: 1;
        }
        .craft-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-top: auto;
            transition: all var(--transition-smooth);
        }
        .craft-card .card-link:hover {
            color: var(--color-accent-deep);
            gap: 0.6rem;
        }
        .craft-card .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-smooth);
        }
        .craft-card:hover .card-link i {
            transform: translateX(3px);
        }

        /* Feature Block */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .feature-block .feature-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
            background: #f3efe7;
        }
        .feature-block .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .feature-block .feature-img:hover img {
            transform: scale(1.04);
        }
        .feature-block .feature-text h3 {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .feature-block .feature-text p {
            font-size: 0.975rem;
            color: #4a4640;
            line-height: 1.8;
            margin-bottom: 0.85rem;
        }

        /* Stats Row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.25rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #d5cfc4;
        }
        .stat-card .stat-num {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-accent-deep);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.875rem;
            color: var(--color-muted);
            margin-top: 0.4rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: #d5cfc4;
        }
        .faq-item .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.35rem;
            font-size: 0.975rem;
            font-weight: 600;
            color: var(--color-dark);
            text-align: left;
            background: transparent;
            gap: 1rem;
            cursor: pointer;
            transition: all var(--transition-smooth);
        }
        .faq-item .faq-question:hover {
            background: var(--color-surface);
        }
        .faq-item .faq-question i {
            font-size: 0.85rem;
            color: var(--color-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent-deep);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 1.35rem;
            font-size: 0.9rem;
            color: #4a4640;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.35rem 1.2rem;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-dark);
            color: #fff;
            text-align: center;
            padding: 3.5rem 0;
            border-radius: 0;
        }
        .cta-section .cta-title {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: 0.03em;
        }
        .cta-section .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1.75rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-accent);
            border-radius: 2rem;
            transition: all var(--transition-bounce);
            box-shadow: var(--shadow-btn);
        }
        .btn-cta:hover {
            background: var(--color-accent-deep);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.75rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.45);
            border-radius: 2rem;
            transition: all var(--transition-smooth);
            background: transparent;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* Footer */
        .site-footer {
            background: #1a1815;
            color: #b5b0a7;
            padding: 3rem 0 2rem;
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-family: 'Noto Serif SC', 'STSong', serif;
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.05em;
            margin-bottom: 0.6rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: #8c8880;
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 0.55rem;
        }
        .footer-col-title {
            font-weight: 600;
            color: #fff;
            font-size: 0.9rem;
            margin-bottom: 0.3rem;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            color: #b5b0a7;
            font-size: 0.85rem;
            transition: color var(--transition-smooth);
        }
        .footer-col a:hover {
            color: #e5e0d8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: #7a7570;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-nav li a {
                padding: 0.45rem 0.6rem;
                font-size: 0.85rem;
            }
            .header-cta {
                padding: 0.5rem 1rem;
                font-size: 0.825rem;
            }
            .feature-block {
                gap: 2rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 1.75rem;
            }
            .footer-grid>div:first-child {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .bottom-tab-bar {
                display: flex;
            }
            body {
                padding-bottom: 70px;
            }
            .site-footer {
                padding-bottom: 5rem;
            }
            .header-inner {
                height: 56px;
            }
            .logo-text {
                font-size: 1.3rem;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner .banner-content {
                padding: 2rem 0;
            }
            .section {
                padding: 2.25rem 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .feature-block .feature-img {
                order: -1;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1.25rem 0.75rem;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-grid>div:first-child {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .craft-card .card-title {
                font-size: 1rem;
            }
            .cta-section .cta-title {
                font-size: 1.4rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .stat-card .stat-num {
                font-size: 1.5rem;
            }
            .stat-card .stat-label {
                font-size: 0.75rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .page-banner {
                min-height: 220px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .bottom-tab-bar .tab-item {
                font-size: 0.65rem;
                min-width: 44px;
                padding: 0.2rem 0.25rem;
            }
            .bottom-tab-bar .tab-item i {
                font-size: 1.05rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-brand: #6e5c3a;
            --color-brand-dark: #3d3226;
            --color-brand-light: #bfb08c;
            --color-accent: #d97d1e;
            --color-accent-dark: #8f4817;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #2a2722;
            --color-text-weak: #7d7668;
            --color-text-muted: #9d9585;
            --color-border: #e8e4dc;
            --color-border-light: #f5f3ef;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.04), 0 10px 28px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.05), 0 18px 40px rgba(0, 0, 0, 0.08);
            --shadow-btn: 0 2px 6px rgba(0, 0, 0, 0.06), 0 6px 16px rgba(0, 0, 0, 0.07);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            outline: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 3rem;
                padding-right: 3rem;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-smooth), background var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
            background: rgba(255, 255, 255, 0.95);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .header-inner {
                height: 72px;
            }
        }

        .logo-text {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--color-brand-dark);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
            position: relative;
        }

        .logo-text::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 1px;
            transition: width var(--transition-smooth);
        }

        .logo-text:hover {
            opacity: 0.85;
        }

        .logo-text:hover::after {
            width: 100%;
        }

        .desktop-nav {
            display: none;
            list-style: none;
            gap: 0.25rem;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
            }
        }

        .desktop-nav li a {
            display: block;
            padding: 0.45rem 0.9rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-weak);
            border-radius: var(--radius-md);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .desktop-nav li a:hover {
            color: var(--color-text);
            background: var(--color-border-light);
        }

        .desktop-nav li a.active {
            color: var(--color-brand-dark);
            background: #f7f3eb;
            font-weight: 600;
        }

        .header-cta {
            display: none;
            padding: 0.55rem 1.25rem;
            background: var(--color-brand-dark);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: var(--radius-lg);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: var(--shadow-btn);
        }

        .header-cta:hover {
            background: #2a221c;
            transform: translateY(-1px);
            box-shadow: var(--shadow-lg);
        }

        .header-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        @media (min-width: 768px) {
            .header-cta {
                display: inline-block;
            }
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            color: var(--color-text);
            font-size: 1.3rem;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: var(--color-border-light);
        }

        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        /* Mobile drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 300px;
            max-width: 85vw;
            height: 100vh;
            height: 100dvh;
            background: #fff;
            z-index: 200;
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.12);
            transition: right var(--transition-smooth);
            padding: 1.5rem;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.35);
            z-index: 199;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-text-weak);
            transition: background var(--transition-fast);
        }

        .mobile-drawer-close:hover {
            background: var(--color-border-light);
        }

        .mobile-drawer-nav {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
        }

        .mobile-drawer-nav li a {
            display: block;
            padding: 0.7rem 1rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: background var(--transition-fast), color var(--transition-fast);
        }

        .mobile-drawer-nav li a:hover,
        .mobile-drawer-nav li a.active {
            background: #f7f3eb;
            color: var(--color-brand-dark);
            font-weight: 600;
        }

        /* Bottom Tab Bar - Mobile */
        .bottom-tab-bar {
            display: flex;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border-light);
            padding: 0.35rem 0.5rem calc(0.35rem + var(--safe-bottom));
            justify-content: space-around;
            align-items: flex-start;
            gap: 0.25rem;
        }

        @media (min-width: 768px) {
            .bottom-tab-bar {
                display: none;
            }
        }

        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.2rem;
            padding: 0.3rem 0.4rem;
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            min-width: 52px;
            text-align: center;
            letter-spacing: 0.01em;
            text-decoration: none;
        }

        .bottom-tab-item i {
            font-size: 1.15rem;
            transition: transform var(--transition-fast);
        }

        .bottom-tab-item:hover {
            color: var(--color-text);
            background: var(--color-border-light);
        }

        .bottom-tab-item.active {
            color: var(--color-brand-dark);
            font-weight: 700;
        }

        .bottom-tab-item.active i {
            transform: scale(1.08);
        }

        /* Section spacing */
        .section {
            padding: 3rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 4.5rem 0;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 5.5rem 0;
            }
        }

        .section-sm {
            padding: 2rem 0;
        }

        @media (min-width: 768px) {
            .section-sm {
                padding: 3rem 0;
            }
        }

        /* Section titles */
        .section-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-accent);
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-text);
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            max-width: 640px;
            line-height: 1.75;
        }

        @media (min-width: 768px) {
            .section-desc {
                font-size: 1rem;
            }
        }

        /* Card base */
        .card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f5f3ef;
        }

        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        @media (min-width: 768px) {
            .card-body {
                padding: 1.5rem;
            }
        }

        .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--color-accent);
            background: #fef9f0;
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            width: fit-content;
        }

        .card-title {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            line-height: 1.4;
            color: var(--color-text);
        }

        .card-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            line-height: 1.65;
            flex: 1;
        }

        .card-meta {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            white-space: nowrap;
        }

        .badge-outline {
            background: transparent;
            border: 1.5px solid var(--color-border);
            color: var(--color-text-weak);
        }

        .badge-fill {
            background: var(--color-brand-dark);
            color: #fff;
        }

        .badge-accent {
            background: #fef9f0;
            color: var(--color-accent-dark);
            border: 1px solid #faddaa;
        }

        /* Button */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.5rem;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            border-radius: var(--radius-lg);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
            border: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--color-brand-dark);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: #2a221c;
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-brand-dark);
            border: 1.5px solid var(--color-brand-dark);
        }

        .btn-outline:hover {
            background: var(--color-brand-dark);
            color: #fff;
            box-shadow: var(--shadow-btn);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-ghost {
            background: transparent;
            color: var(--color-text-weak);
            padding: 0.5rem 1rem;
        }

        .btn-ghost:hover {
            color: var(--color-text);
            background: var(--color-border-light);
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* Hero Banner */
        .page-hero {
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
        }

        @media (min-width: 768px) {
            .page-hero {
                min-height: 420px;
            }
        }

        @media (min-width: 1024px) {
            .page-hero {
                min-height: 480px;
            }
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 21, 17, 0.55) 0%, rgba(26, 21, 17, 0.7) 60%, rgba(26, 21, 17, 0.85) 100%);
            z-index: 1;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 3rem 0;
        }

        .page-hero-eyebrow {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: #f5c475;
            margin-bottom: 0.6rem;
        }

        .page-hero-title {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            line-height: 1.25;
            margin-bottom: 0.75rem;
        }

        @media (min-width: 768px) {
            .page-hero-title {
                font-size: 2.4rem;
            }
        }

        @media (min-width: 1024px) {
            .page-hero-title {
                font-size: 2.8rem;
            }
        }

        .page-hero-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 540px;
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .page-hero-desc {
                font-size: 1.05rem;
            }
        }

        /* Stats row */
        .stat-block {
            text-align: center;
            padding: 1rem;
        }

        .stat-number {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            letter-spacing: 0.02em;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.5rem;
            }
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-top: 0.25rem;
            letter-spacing: 0.03em;
        }

        /* Highlight card */
        .highlight-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

        @media (min-width: 768px) {
            .highlight-card {
                flex-direction: row;
            }
        }

        .highlight-card-img {
            flex: 0 0 auto;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #f5f3ef;
        }

        @media (min-width: 768px) {
            .highlight-card-img {
                width: 44%;
                aspect-ratio: auto;
                min-height: 300px;
            }
        }

        .highlight-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .highlight-card:hover .highlight-card-img img {
            transform: scale(1.03);
        }

        .highlight-card-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 0.6rem;
            flex: 1;
        }

        @media (min-width: 768px) {
            .highlight-card-body {
                padding: 2rem 2.5rem;
            }
        }

        /* Horizontal scroll cards */
        .scroll-row {
            display: flex;
            gap: 1rem;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 0.5rem;
            scrollbar-width: thin;
            scrollbar-color: #d4cfc4 transparent;
        }

        .scroll-row::-webkit-scrollbar {
            height: 5px;
        }

        .scroll-row::-webkit-scrollbar-track {
            background: transparent;
        }

        .scroll-row::-webkit-scrollbar-thumb {
            background: #d4cfc4;
            border-radius: 10px;
        }

        .scroll-card {
            flex: 0 0 auto;
            width: 280px;
            scroll-snap-align: start;
        }

        @media (min-width: 768px) {
            .scroll-card {
                width: 320px;
            }
        }

        /* Divider */
        .divider {
            height: 1px;
            background: var(--color-border);
            margin: 0;
            border: none;
        }

        .divider-light {
            background: var(--color-border-light);
        }

        /* Footer */
        .site-footer {
            background: #1c1a16;
            color: #b8b1a3;
            padding: 3rem 0 2rem;
            font-size: 0.88rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

        @media (max-width: 767px) {
            .site-footer {
                padding-bottom: 6rem;
            }
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2.5rem;
            }
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.6fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }

        .footer-logo {
            font-family: 'Noto Serif SC', Georgia, serif;
            font-size: 1.25rem;
            font-weight: 700;
            color: #f5f3ef;
            letter-spacing: 0.04em;
            margin-bottom: 0.6rem;
        }

        .footer-desc {
            font-size: 0.82rem;
            color: #9d9585;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col-title {
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: #e8e4dc;
            margin-bottom: 0.8rem;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }

        .footer-col a {
            color: #b8b1a3;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .footer-col a:hover {
            color: #f5f3ef;
        }

        .footer-bottom {
            border-top: 1px solid #3f3b35;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            font-size: 0.78rem;
            color: #7d7668;
            justify-content: space-between;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in-up {
            animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
        }

        .animate-delay-100 {
            animation-delay: 100ms;
            opacity: 0;
        }

        .animate-delay-200 {
            animation-delay: 200ms;
            opacity: 0;
        }

        .animate-delay-300 {
            animation-delay: 300ms;
            opacity: 0;
        }

        /* Skeleton pulse for loading */
        @keyframes shimmer {
            0% {
                background-position: -200px 0;
            }
            100% {
                background-position: 200px 0;
            }
        }

        /* Focus visible utility */
        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* Accessibility skip link */
        .skip-link {
            position: absolute;
            top: -100px;
            left: 1rem;
            z-index: 300;
            background: var(--color-brand-dark);
            color: #fff;
            padding: 0.6rem 1.2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.85rem;
            transition: top var(--transition-fast);
        }

        .skip-link:focus {
            top: 0.75rem;
        }

/* roulang page: category5 */
:root {
            --color-brand-700: #1f4a2d;
            --color-brand-600: #2c5f3c;
            --color-brand-500: #3d7850;
            --color-accent-500: #c8903a;
            --color-accent-400: #dca54d;
            --color-bg: #fdfdfc;
            --color-surface: #ffffff;
            --color-text: #1e1e1e;
            --color-text-soft: #5c5c5c;
            --color-text-muted: #8a8a8a;
            --color-border: #e5e0d8;
            --color-border-light: #f0ece5;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 36px rgba(0, 0, 0, 0.09);
            --shadow-xl: 0 16px 50px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', Georgia, serif;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
        }

        @media (max-width: 767px) {
            body {
                padding-bottom: calc(72px + var(--safe-bottom));
            }
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            width: 100%;
            max-width: 1220px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            transition: box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        @media (min-width: 768px) {
            .header-inner {
                height: 72px;
            }
        }

        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-brand-700);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .logo-text:hover {
            color: var(--color-brand-500);
        }
        @media (min-width: 768px) {
            .logo-text {
                font-size: 1.6rem;
            }
        }

        .desktop-nav {
            display: none;
            list-style: none;
            gap: 0.15rem;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }
        @media (min-width: 1024px) {
            .desktop-nav {
                display: flex;
            }
        }
        .desktop-nav a {
            display: inline-block;
            padding: 0.45rem 0.85rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .desktop-nav a:hover {
            color: var(--color-brand-600);
            background: #f0f5f1;
        }
        .desktop-nav a.active {
            color: var(--color-brand-700);
            background: #e8f0ea;
            font-weight: 600;
        }

        .header-cta {
            display: none;
            padding: 0.55rem 1.3rem;
            font-size: 0.88rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-brand-600);
            border-radius: 2rem;
            white-space: nowrap;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }
        .header-cta:hover {
            background: var(--color-brand-700);
            box-shadow: 0 4px 16px rgba(31, 74, 45, 0.25);
            transform: translateY(-1px);
        }
        @media (min-width: 768px) {
            .header-cta {
                display: inline-block;
            }
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            font-size: 1.3rem;
            color: var(--color-text);
            background: transparent;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: #f5f5f5;
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            flex-direction: column;
            padding: 1.5rem;
            overflow-y: auto;
            gap: 0.3rem;
        }
        .mobile-drawer.open {
            display: flex;
        }
        @media (min-width: 1024px) {
            .mobile-drawer {
                display: none !important;
            }
        }
        .mobile-drawer a {
            display: block;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: #f0f5f1;
            color: var(--color-brand-700);
            font-weight: 600;
        }

        /* ========== BOTTOM TAB (Mobile) ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 101;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--color-border-light);
            padding: 6px 4px calc(6px + var(--safe-bottom));
            box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.04);
        }
        @media (max-width: 767px) {
            .bottom-tab-nav {
                display: flex;
                justify-content: space-around;
                align-items: center;
            }
        }
        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--color-text-muted);
            padding: 4px 6px;
            border-radius: 10px;
            transition: all var(--transition-fast);
            text-align: center;
            min-width: 52px;
            text-decoration: none;
        }
        .bottom-tab-item i {
            font-size: 1.15rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-item.active {
            color: var(--color-brand-700);
            font-weight: 600;
        }
        .bottom-tab-item.active i {
            color: var(--color-brand-600);
        }
        .bottom-tab-item:hover {
            color: var(--color-brand-600);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }
        @media (min-width: 1024px) {
            .section {
                padding: 6rem 0;
            }
        }
        .section-sm {
            padding: 2.5rem 0;
        }
        @media (min-width: 768px) {
            .section-sm {
                padding: 3.5rem 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-brand-500);
            margin-bottom: 0.6rem;
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: var(--color-text);
            line-height: 1.3;
            margin-bottom: 0.8rem;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.2rem;
            }
        }
        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.6rem;
            }
        }
        .section-desc {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 640px;
            line-height: 1.75;
        }
        @media (min-width: 768px) {
            .section-desc {
                font-size: 1.08rem;
            }
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 1.3rem 1.2rem;
        }
        @media (min-width: 768px) {
            .card-body {
                padding: 1.5rem 1.4rem;
            }
        }
        .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--color-brand-600);
            background: #eaf5ed;
            padding: 0.25rem 0.7rem;
            border-radius: 2rem;
            margin-bottom: 0.6rem;
        }
        .card-title {
            font-family: var(--font-serif);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .card-text {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.7rem 1.6rem;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: 2rem;
            letter-spacing: 0.01em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--color-brand-600);
            color: #fff;
            border: 2px solid var(--color-brand-600);
        }
        .btn-primary:hover {
            background: var(--color-brand-700);
            border-color: var(--color-brand-700);
            box-shadow: 0 6px 22px rgba(31, 74, 45, 0.28);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-brand-700);
            border: 2px solid var(--color-brand-400);
        }
        .btn-outline:hover {
            background: #f0f5f1;
            border-color: var(--color-brand-600);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--color-accent-500);
            color: #fff;
            border: 2px solid var(--color-accent-500);
        }
        .btn-accent:hover {
            background: #b07e2f;
            border-color: #b07e2f;
            box-shadow: 0 6px 22px rgba(200, 144, 58, 0.3);
            transform: translateY(-2px);
        }

        /* ========== BADGE ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 2rem;
            letter-spacing: 0.03em;
        }
        .badge-green {
            background: #e6f4ea;
            color: #1f4a2d;
        }
        .badge-gold {
            background: #fdf3e2;
            color: #8a5c29;
        }

        /* ========== STAT BLOCK ========== */
        .stat-number {
            font-family: var(--font-serif);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-brand-700);
            line-height: 1.1;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 1.1rem 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .faq-question {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            user-select: none;
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
            margin-top: 3px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-brand-600);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.3s ease;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-top: 0.7rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1a1a;
            color: #c5c5c5;
            padding: 3rem 0 2rem;
            font-size: 0.9rem;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2.5rem;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr 1fr;
            }
        }
        .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.6rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: #aaa;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col-title {
            font-weight: 600;
            color: #e0e0e0;
            margin-bottom: 0.8rem;
            font-size: 0.88rem;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: #b0b0b0;
            padding: 0.25rem 0;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: space-between;
            font-size: 0.8rem;
            color: #888;
        }

        /* ========== HERO ========== */
        .hero-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .hero-banner {
                min-height: 500px;
            }
        }
        @media (min-width: 1024px) {
            .hero-banner {
                min-height: 560px;
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 30, 20, 0.55) 0%, rgba(8, 20, 12, 0.75) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 680px;
        }
        .hero-content h1 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }
        @media (min-width: 768px) {
            .hero-content h1 {
                font-size: 2.8rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-content h1 {
                font-size: 3.2rem;
            }
        }
        .hero-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        @media (min-width: 768px) {
            .hero-content p {
                font-size: 1.15rem;
            }
        }

        /* ========== IMAGE BLOCK ========== */
        .img-rounded {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .img-rounded img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ========== GRID HELPERS ========== */
        .grid-2col {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }
        @media (min-width: 768px) {
            .grid-2col {
                grid-template-columns: 1fr 1fr;
                gap: 3rem;
            }
        }
        .grid-3col {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        @media (min-width: 640px) {
            .grid-3col {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .grid-3col {
                grid-template-columns: repeat(3, 1fr);
                gap: 2rem;
            }
        }
        .grid-4col-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        @media (min-width: 768px) {
            .grid-4col-stats {
                grid-template-columns: repeat(4, 1fr);
                gap: 2rem;
            }
        }

        /* ========== DIVIDER ========== */
        .divider {
            width: 50px;
            height: 3px;
            background: var(--color-brand-500);
            border-radius: 2px;
            margin: 0.8rem 0 1.5rem;
        }

        /* ========== DARK BG BLOCK ========== */
        .dark-block {
            background: #0f1f15;
            color: #e0e0e0;
            border-radius: var(--radius-2xl);
            padding: 2.5rem 1.5rem;
            position: relative;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .dark-block {
                padding: 3.5rem 2.5rem;
            }
        }
        .dark-block .section-title {
            color: #fff;
        }
        .dark-block .section-desc {
            color: #c5c5c5;
        }

        /* ========== PROCESS LIST ========== */
        .process-item {
            display: flex;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-border-light);
            align-items: flex-start;
        }
        .process-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #eaf5ed;
            color: var(--color-brand-700);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .process-info h4 {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 0.2rem;
        }
        .process-info p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        @media (max-width: 767px) {
            .hide-mobile {
                display: none !important;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1a1d26;
            --accent: #b8944c;
            --accent-light: #d4a853;
            --bg: #fafaf8;
            --surface: #ffffff;
            --text: #2d2d2d;
            --text-light: #6b6d74;
            --text-lighter: #94969c;
            --border: #e8e6e1;
            --border-light: #f2f0ec;
            --radius-sm: 0.5rem;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            -webkit-tap-highlight-color: transparent;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition);
        }
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== SITE HEADER ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
        }
        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-text:hover {
            color: var(--accent);
        }
        .desktop-nav {
            display: flex;
            list-style: none;
            gap: 2px;
            align-items: center;
        }
        .desktop-nav li a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .desktop-nav li a:hover {
            color: var(--primary);
            background: rgba(0, 0, 0, 0.03);
        }
        .desktop-nav li a.active {
            color: var(--accent);
            font-weight: 600;
            background: rgba(184, 148, 76, 0.07);
        }
        .header-cta {
            display: inline-block;
            padding: 9px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            white-space: nowrap;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .header-cta:hover {
            background: var(--accent-light);
            color: #fff;
            box-shadow: 0 4px 16px rgba(184, 148, 76, 0.3);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 6px 8px;
            border-radius: 6px;
        }
        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
            color: var(--accent);
        }

        /* Mobile drawer menu */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            flex-direction: column;
            padding: 20px 24px;
            gap: 4px;
            overflow-y: auto;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            display: block;
            padding: 14px 16px;
            border-radius: 10px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: rgba(184, 148, 76, 0.07);
            color: var(--accent);
            font-weight: 600;
        }
        .mobile-drawer .drawer-cta {
            margin-top: 12px;
            text-align: center;
            background: var(--accent);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
        }
        .mobile-drawer .drawer-cta:hover {
            background: var(--accent-light);
            color: #fff;
        }

        /* ===== BOTTOM TAB BAR (mobile) ===== */
        .bottom-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            box-shadow: var(--shadow-tab, 0 -2px 16px rgba(0, 0, 0, 0.08));
            padding: 6px 0 env(safe-area-inset-bottom, 8px) 0;
            justify-content: space-around;
            align-items: center;
        }
        .bottom-tab-bar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-lighter);
            padding: 4px 8px;
            border-radius: 8px;
            transition: all var(--transition);
            min-width: 52px;
            text-align: center;
        }
        .bottom-tab-bar a i {
            font-size: 1.25rem;
        }
        .bottom-tab-bar a.active {
            color: var(--accent);
            font-weight: 600;
        }
        .bottom-tab-bar a:active {
            transform: scale(0.94);
        }

        /* ===== CONTAINER ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== PAGE BANNER ===== */
        .page-banner {
            position: relative;
            padding: 80px 24px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            min-height: 360px;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 29, 38, 0.55) 0%, rgba(26, 29, 38, 0.72) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .page-banner-content .banner-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: #fff;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(6px);
            margin-bottom: 16px;
        }
        .page-banner-content h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .page-banner-content .banner-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        /* ===== SECTION ===== */
        .section {
            padding: 64px 24px;
        }
        .section-sm {
            padding: 48px 24px;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            margin-bottom: 36px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-title {
            margin-bottom: 8px;
        }

        /* ===== CARDS ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f5f4f0;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .card-body .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 650;
            color: var(--primary);
            line-height: 1.4;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent);
            margin-top: 4px;
            transition: gap var(--transition);
        }
        .card-body .card-link:hover {
            gap: 10px;
            color: var(--accent-light);
        }

        /* ===== STAT BLOCK ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 28px 16px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-value {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 6px;
        }

        /* ===== FEATURE LIST ===== */
        .feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 20px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .feature-list li:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
        }
        .feature-list li .fi-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(184, 148, 76, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
        }
        .feature-list li .fi-content h4 {
            font-size: 1rem;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .feature-list li .fi-content p {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            gap: 12px;
        }
        .faq-question i {
            flex-shrink: 0;
            color: var(--text-lighter);
            transition: transform var(--transition);
            font-size: 0.85rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px 22px;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: var(--deep);
            color: #fff;
            padding: 64px 24px;
            text-align: center;
            border-radius: var(--radius-xl);
            margin: 0 24px 48px;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .cta-btn {
            display: inline-block;
            padding: 13px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--accent);
            color: #fff;
            transition: all var(--transition);
        }
        .cta-btn:hover {
            background: var(--accent-light);
            color: #fff;
            box-shadow: 0 6px 24px rgba(212, 168, 83, 0.35);
            transform: translateY(-2px);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 48px 24px 32px;
            color: var(--text-light);
        }
        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
        }
        .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: var(--text-light);
            max-width: 280px;
        }
        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-light);
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 32px auto 0;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-lighter);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
            .page-banner-content h1 {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .bottom-tab-bar {
                display: flex;
            }
            body {
                padding-bottom: 80px;
            }
            .site-footer {
                padding-bottom: 100px;
            }
            .page-banner {
                padding: 56px 20px;
                min-height: 280px;
            }
            .page-banner-content h1 {
                font-size: 1.75rem;
            }
            .page-banner-content .banner-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: 48px 16px;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-value {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-desc {
                max-width: 100%;
            }
            .cta-section {
                margin: 0 12px 36px;
                padding: 44px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .feature-list li {
                flex-direction: column;
                gap: 8px;
                padding: 14px 16px;
            }
            .feature-list li .fi-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .faq-question {
                padding: 15px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 15px 16px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 14px;
                height: 52px;
            }
            .logo-text {
                font-size: 1.25rem;
            }
            .page-banner {
                padding: 40px 16px;
                min-height: 240px;
            }
            .page-banner-content h1 {
                font-size: 1.45rem;
            }
            .page-banner-content .banner-desc {
                font-size: 0.85rem;
            }
            .section {
                padding: 36px 12px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 10px;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .bottom-tab-bar a {
                font-size: 0.65rem;
                padding: 3px 4px;
                min-width: 44px;
            }
            .bottom-tab-bar a i {
                font-size: 1.1rem;
            }
            .cta-section {
                margin: 0 8px 28px;
                padding: 32px 16px;
                border-radius: var(--radius);
            }
            .cta-btn {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
        }